HNG-FEC

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HNG-FECForward Error Correction
HNG FEC.jpg
Frequencies 2400 kHzKiloHertz (kHz) 10^3 Hz2,400,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
2.4 MHzMegaHertz (MHz) 10^6 Hz
,24000 kHzKiloHertz (kHz) 10^3 Hz24,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
24 MHzMegaHertz (MHz) 10^6 Hz
2,400 kHzKiloHertz (kHz) 10^3 Hz
2.4 MHzMegaHertz (MHz) 10^6 Hz
24,000 kHzKiloHertz (kHz) 10^3 Hz
24 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 2.4 MHzMegaHertz (MHz) 10^6 Hz2,400,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
2,400 kHzKiloHertz (kHz) 10^3 Hz
- 24 MHzMegaHertz (MHz) 10^6 Hz24,000,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
24,000 kHzKiloHertz (kHz) 10^3 Hz
Mode USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables)
Modulation FSKFrequency-Shift Keying
ACFAutoCorrelation Function
Bandwidth 600 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).0.6 kHzKiloHertz (kHz) 10^3 Hz
6.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.6 kHzKiloHertz (kHz) 10^3 Hz
6.0e-4 MHzMegaHertz (MHz) 10^6 Hz
0.6 kHzKiloHertz (kHz) 10^3 Hz
6.0e-4 MHzMegaHertz (MHz) 10^6 Hz
Location Hungary
Short Description HNG-FECForward Error Correction was a full duplex system developed and used solely by the Ministry of Foreign Affairs in Hungary. Used 100.05 bdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. with 500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift FSKFrequency-Shift Keying. This mode is no longer used today.
I/Q Raw Recording
Audio Sample

HNG-FECForward Error Correction was a full duplex system used by the Ministry of Foreign Affairs in Hungary. Used 100.05 BdBaud (unit symbol Bd) is the unit for symbol rate or modulation rate in symbols per second. with 500 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz). shift FSKFrequency-Shift Keying. This mode is no longer used today.

HNG-FECForward Error Correction uses a 15 bit code, the first 5 bits corresponding to the ITA-2 alphabet. The first and last bits of this code word are inverted (Inv, Nor, Nor, Nor, Nor, Inv). The remaining 10 bits are used for error detection and correction. Error correction is done by table look up of the character which closest matches the one that was received in error.


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Decoding Tutorials[edit]

Decoding Software[edit]

Professional Equipment/Software
  • go2decode
  • go2monitor
  • Hoka Code 300-32
  • Wavecom W-Code
  • Wavecom W-Spectra

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